CN214661895U

CN214661895U - High-torque gear box for extruder

Info

Publication number: CN214661895U
Application number: CN202120950873.4U
Authority: CN
Inventors: 杨耀锋
Original assignee: Nanjing Beyou Extrusion Machinery Co ltd
Current assignee: Nanjing Beyou Extrusion Machinery Co ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-11-09
Anticipated expiration: 2031-05-06

Abstract

The utility model relates to a high moment of torsion gear box for extruder, relate to the field of gear box, including setting up a plurality of pivots and the drive gear in the box, still include spacing bead, spacing piece and spacing seat, spacing bead is provided with a plurality of, and evenly set up on the periphery of pivot along the pivot circumferencial direction, drive gear and spacing piece are all established on pivot and a plurality of spacing bead, spacing piece is located drive gear axis direction both sides, and the side butt of spacing piece one side and gear, the opposite side passes through the position control subassembly and connects on spacing seat, spacing seat distributes at spacing bead length direction both ends, two spacing seat covers are established in the pivot and are fixed through fixed subassembly, this application has the purpose that improves the transmission effect in the high moment of torsion work of gear box.

Description

High-torque gear box for extruder

Technical Field

The application relates to the field of gear boxes, in particular to a high-torque gear box for an extruder.

Background

The existing gear box is a speed change device which realizes the speed change effect through the meshing of large and small gears, a large gear is arranged on a low-speed shaft in the gear box, a small gear is arranged on a high-speed shaft, and the process of acceleration or deceleration is completed through the meshing and transmission action between the gears.

Chinese patent No. CN203979350U discloses a gear box of a twin-screw plastic extruder, which comprises a housing and an input shaft installed at the left rear part of the housing, wherein a middle shaft is parallelly driven right in front of the input shaft, a second external tooth is arranged at the right part of the middle shaft, a first output shaft is connected at the right end of the middle shaft, torsion shafts are arranged at the upper and lower sides at the rear of the middle shaft, a second-stage gear is fixedly sleeved at the left part of each torsion shaft, the two second-stage gears are engaged with the second external tooth, an optical axis is connected at the right end of each torsion shaft, and a third-stage gear is fixedly sleeved on each optical axis; and a second output shaft positioned between the two optical shafts is arranged right behind the first output shaft, third external teeth on the second output shaft are simultaneously meshed with the two third-stage gears, and the optical shafts and the third-stage gears, and the torsion shaft and the second-stage gear are fixedly sleeved by conical surfaces.

In view of the above-mentioned related technologies, the inventor believes that in the actual assembly process, the position of the rotating shaft is mainly limited by the size and the structure of the gearbox itself, and therefore, when the rotating shaft is installed, the meshing precision between the gears may not meet the design requirement, thereby affecting the transmission effect of the gearbox in high-torque operation.

SUMMERY OF THE UTILITY MODEL

In order to realize improving the purpose of the transmission effect in the high moment of torsion work of gear box, this application provides a high moment of torsion gear box for extruder.

The application provides a high moment of torsion gear box for extruder adopts following technical scheme:

the utility model provides a high moment of torsion gear box for extruder, is including setting up a plurality of pivots and drive gear in the box, still includes spacing bead, spacing piece and spacing seat, spacing bead is provided with a plurality of to evenly set up on the periphery of pivot along the pivot circumferencial direction, drive gear and spacing piece are all established on pivot and a plurality of spacing bead, spacing piece is located drive gear axis direction both sides, and the side butt of spacing piece one side and gear, and the opposite side passes through the position control subassembly and connects on spacing seat, spacing seat distributes at spacing bead length direction both ends, two spacing seat cover is established in the pivot and is fixed through fixed subassembly.

Through adopting above-mentioned technical scheme, two spacing seats are fixed at spacing bead and are on a parallel with length direction both ends through fixed subassembly, and spacing piece supports tightly in corresponding drive gear along axis direction both sides through position control subassembly for drive gear's rigidity is adjustable, thereby makes two intermeshing's drive gear's position precision improve, realizes improving the purpose of the transmission effect in the high moment of torsion work of gear box.

Optionally, the fixing component comprises a countersunk head screw, the countersunk head screw is provided with a plurality of parts and is uniformly arranged on the circumferential surface of the limiting seat along the circumferential direction of the limiting seat, and the countersunk head screw is abutted against the rotating shaft towards one end of the rotating shaft.

Through adopting above-mentioned technical scheme, screw up each countersunk screw for each countersunk screw supports tightly on corresponding pivot towards the pivot one section, thereby realizes the effect of fixed spacing position.

Optionally, it is a plurality of countersunk screw all rotates towards pivot one end and is connected with the stopper, the pivot corresponds the stopper position and has seted up the spacing groove along the circumferencial direction, the stopper butt is in the spacing groove, the stopper slides along the axis direction that corresponds countersunk screw and connects in spacing seat.

Through adopting above-mentioned technical scheme, twist countersunk screw and make the stopper insert the spacing inslot and with spacing groove bottom wall butt, through the removal of a plurality of stopper joints restriction spacing seats in the spacing groove, improve the fixed effect to spacing seat.

Optionally, the position adjusting assembly includes a threaded sleeve and a tightening bolt, the threaded sleeve is provided with a plurality of sleeves and is uniformly arranged along the circumferential direction of the limiting seat, the plurality of threaded sleeves are all arranged on the limiting seat, the tightening bolt is in one-to-one correspondence with the threaded sleeve, and the threaded ends of the tightening bolts are all tightened on the limiting plate.

By adopting the technical scheme, the tightening bolts on the two sides of the transmission gear are screwed, so that the tightening bolts move towards the limiting piece and the limiting pieces are tightly pressed on the two side walls of the corresponding transmission gear, the position of the transmission gear is adjusted, and the purpose of fixing the transmission gear is achieved.

Optionally, a sliding block is fixedly connected to the circumferential surface of the threaded sleeve, a sliding groove is formed in the limiting seat along the axis direction of the rotating shaft, a plurality of sliding grooves are uniformly distributed in the circumferential direction of the limiting seat, the threaded sleeve is connected in the sliding groove in a sliding manner, a baffle is coaxially fixed to one end, facing the transmission gear, of the threaded sleeve, and the baffle is abutted to one side, facing the transmission gear, of the limiting seat.

Through adopting above-mentioned technical scheme, the threaded sleeve slides and connects in the spout, makes the threaded sleeve can dismantle convenient the change on the one hand, and on the other hand can not take place relative rotation between threaded sleeve and the spout, so when screwing and moving the fastening bolt, supports the fastening bolt and remove towards drive gear direction to support spacing piece tightly on corresponding drive gear.

Optionally, a pressing block is arranged at one end, facing the limiting piece, of the abutting bolt, and a pressing groove is formed in the position, corresponding to the pressing block, of the limiting piece.

Through adopting above-mentioned technical scheme, the area of contact between spacing piece and the tight bolt that supports is big, reduces the too big condition that leads to spacing piece to warp of local pressure, through the cooperation of briquetting and indent, can reduce the drive gear and rotate the in-process and support the condition that tight bolt takes place the skew under the centrifugal force effect, improve the location effect to the drive gear.

Optionally, the pressing block is fixedly connected with an insertion rod towards one end of the abutting bolt, the insertion rod is inserted into the abutting bolt, and the pressing block and the abutting bolt are in tight fit.

Through adopting above-mentioned technical scheme, the connection can be dismantled at the tight bolt tip to the briquetting, through briquetting and spacing piece butt, increases the lifting surface area of spacing piece to make spacing piece atress even, improve the fixed effect to drive gear.

Optionally, the rotating shaft is provided with a scale mark, and the scale mark is located between the two limiting seats.

By adopting the technical scheme, when the position of the corresponding transmission gear is adjusted, the adjustment can be carried out according to the scale marks, the operation precision is improved, and the transmission effect between the transmission gears is improved.

In summary, the present application includes at least one of the following beneficial technical effects: the position of the transmission gear is fixed and adjustable, so that the position precision of the two transmission gears which are meshed with each other is improved, and the transmission effect of the high-torque work of the gear box is improved.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural diagram for embodying a position adjustment assembly according to an embodiment of the present application.

Fig. 4 is a schematic structural diagram for embodying the fixing assembly according to the embodiment of the present application.

Description of reference numerals: 1. a box body; 11. a rotating shaft; 12. scale lines; 13. a transmission gear; 14. a limiting convex rib; 15. a limiting sheet; 16. a limiting seat; 2. a fixing assembly; 21. countersunk head screws; 22. a limiting groove; 23. a limiting block; 3. a position adjustment assembly; 31. a threaded sleeve; 32. tightly abutting against the bolt; 33. a slider; 34. a chute; 35. a baffle plate; 4. briquetting; 41. pressing a groove; 42. and (4) inserting the rod.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses high moment of torsion gear box for extruder. As shown in fig. 1 and 2, the high-torque gear box for the extruder comprises a box body 1, a plurality of rotating shafts 11 are rotatably connected in the box body 1 through bearings, transmission gears 13 which are meshed with each other are arranged on two adjacent rotating shafts 11, the transmission gears 13 are coaxially sleeved on the rotating shafts 11, a plurality of limiting convex edges 14 which are parallel to the axial direction of the rotating shafts 11 are arranged between the transmission gears 13 and the rotating shafts 11, the limiting convex edges 14 are uniformly fixed on the circumferential surface of the rotating shafts 11 along the circumferential direction of the rotating shafts 11, the length of the limiting convex edges 14 is greater than the width of the transmission gears 13, through holes matched with the limiting convex edges 14 are formed in the transmission gears 13 along the axial direction, and the limiting convex edges 14 penetrate through the through holes to limit the relative rotation between the transmission gears 13 and the corresponding rotating shafts 11.

As shown in fig. 2 and 3, both sides of the transmission gear 13 along the axis direction are coaxially provided with a limiting piece 15 and a limiting seat 16, through holes are formed in the limiting piece 15 and the limiting seat 16, the inner contour of each through hole is matched with the outer contour of the combination of the rotating shaft 11 and the plurality of limiting convex ribs 14, so that the limiting piece 15 and the limiting seat 16 can slide on the rotating shaft 11 and the plurality of limiting convex ribs 14, the limiting piece 15 abuts against the side surface of the transmission gear 13, the limiting seat 16 is fixed at one end corresponding to the limiting convex ribs 14 through the fixing component 2, and the limiting piece 15 and the limiting seat 16 which are positioned at the same side of the transmission gear 13 are connected through the position adjusting component 3.

As shown in fig. 4, the fixing component 2 includes a plurality of countersunk screws 21 that are screwed on the circumferential surface of the limiting seat 16, and a plurality of countersunk screws 21 are evenly distributed along the circumferential direction of the limiting seat 16, a plurality of countersunk screws 21 are screwed in the limiting seat 16 along the radial direction of the limiting seat 16, a plurality of countersunk screws 21 are all rotatably connected with the limiting block 23 towards the one end of the rotating shaft 11, the limiting seat 16 corresponds to the limiting block 23 and has been provided with an accommodating groove, the limiting block 23 slides along the axial direction of the countersunk screws 21 and is connected in the accommodating groove of the limiting seat 16, an annular limiting groove 22 is provided on the circumferential surface of the rotating shaft 11 corresponding to the limiting block 23, the countersunk screws 21 are screwed to enable the limiting block 23 to penetrate out from the inner wall of the limiting seat 16, the limiting block 23 is inserted into the limiting groove 22 and abuts against the bottom wall of the limiting groove 22, and the fixing of the limiting seat 16 is realized.

As shown in fig. 2 and 3, the position adjusting assembly 3 includes a plurality of threaded sleeves 31 arranged parallel to the rotating shaft 11, the plurality of threaded sleeves 31 are uniformly distributed along the circumferential direction of the limiting seat 16, sliding blocks 33 are fixedly connected to the threaded sleeves 31, the sliding blocks 33 are arranged along the axial direction of the threaded sleeves 31, sliding grooves 34 for the threaded sleeves 31 and the sliding blocks 33 to slide are formed in the limiting seat 16, the number of the sliding grooves 34 is greater than that of the threaded sleeves 31, a baffle 35 is coaxially fixed on the outer circumferential surface of one end of the threaded sleeves 31 facing the transmission gear 13, the baffle 35 abuts against one end of the limiting seat 16 facing the transmission gear 13, the threaded sleeves 31 can be detached, and abutting bolts 32 are connected to the threaded sleeves 31 in an internal thread manner.

When the tightening bolts 32 on the two sides of the transmission gear are screwed down and the tightening bolts 32 are abutted on the limiting piece 15, the tightening bolts 32 exert acting force on the threaded sleeve 31, the baffle 35 is abutted on the limiting seat 16 to exert reaction force on the threaded sleeve 31, and the position of the limiting seat 16 is fixed, so that the transmission gear 13 is fixed.

One end of the abutting bolt 32, which faces the limiting piece 15, is provided with a pressing block 4, the diameter of which is larger than that of the abutting bolt 32, a pressing groove 41 is formed in the limiting piece 15, the pressing block 4 abuts against the pressing groove 41 in the limiting piece 15, the stress area of the limiting piece 15 is increased, the limiting piece 15 is uniformly stressed, the pressing effect on the transmission gear 13 is improved, the pressing block 4 is fixedly connected with an insertion rod 42, the end portion of the abutting bolt 32 is provided with an insertion groove for the insertion rod 42 to be inserted, the insertion rod 42 is tightly matched with the insertion groove of the abutting bolt 32, fixing between the pressing block 4 and the abutting bolt 32 is realized, the abutting bolt 32 is screwed, the transmission gear 13 is abutted against two side walls of the transmission gear 13 along the limiting pieces 15 on two sides through the pressing block 4, and the fixing effect on the transmission gear 13 is improved.

And a scale mark 12 arranged along the length direction of the rotating shaft 11 is also arranged between two opposite limiting seats 16 on the rotating shaft 11 and used as a position reference when the position of the transmission gear 13 is adjusted.

The implementation principle of the embodiment of the application is as follows: an operator firstly twists the countersunk head screws 21 on the limiting seat 16 to enable the limiting blocks 23 in all the limiting seats 16 to be installed to be located in the limiting seat 16, sleeves the first limiting seat 16 on the rotating shaft 11 and moves the first limiting seat to one end of the limiting convex edge 14 in the length direction, screws the countersunk head screws 21 to enable the limiting blocks 23 on the limiting seat 16 to be abutted against the bottom wall of the limiting groove 22, then sleeves the first limiting piece 15, the transmission gear 13 and the second limiting piece 15 on the rotating shaft 11 in sequence, sleeves the second limiting seat 16, and screws the countersunk head screws 21 on the limiting seat 16 to fix the position of the second limiting seat.

The threaded sleeves 31 are arranged in the sliding grooves 34 on the two limiting seats 16, the abutting bolts 32 are screwed into the threaded sleeves 31, then the pressing blocks 4 are in threaded connection with the end portions of the abutting bolts 32, the abutting bolts 32 are screwed to enable the transmission gears 13 to abut against the transmission gears 13 along the limiting pieces 15 on the two sides, the transmission gears 13 are fixed at the middle positions corresponding to the limiting convex edges 14 to achieve primary fixing of the transmission gears 13, all the transmission gears 13 are sequentially fixed in the mode, and the transmission gears are assembled in the box body 1 of the gear box.

After the assembly of the transmission gears 13 is completed, one of the transmission gears 13 is finely adjusted according to the position of the transmission gears 13 which are meshed with each other and by referring to the scale marks 12 on the rotating shaft 11, so that the position precision between the two transmission gears 13 which are meshed with each other is improved, and the working stability of the gear box during high-torque work and the transmission effect of the gear box are improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a high moment of torsion gear box for extruder, is including setting up a plurality of pivot (11) and drive gear (13) in box (1), its characterized in that: still include spacing bead (14), spacing piece (15) and spacing seat (16), spacing bead (14) are provided with a plurality of to evenly set up on the periphery of pivot (11) along pivot (11) circumferencial direction, drive gear (13) and spacing piece (15) are all established in pivot (11) and a plurality of spacing bead (14) on, spacing piece (15) are located drive gear (13) axis direction both sides, and the side butt of spacing piece (15) one side and gear, and the opposite side passes through position control subassembly (3) to be connected on spacing seat (16), spacing seat (16) distribute at spacing bead (14) length direction both ends, two spacing seat (16) cover is established in pivot (11) and is fixed through fixed subassembly (2).

2. The high torque gearbox for an extruder of claim 1, wherein: the fixing component (2) comprises a countersunk screw (21), the countersunk screw (21) is provided with a plurality of parts and is uniformly arranged on the circumferential surface of the limiting seat (16) along the circumferential direction of the limiting seat (16), and the countersunk screw (21) is abutted against the rotating shaft (11) towards one end of the rotating shaft (11).

3. The high torque gearbox for an extruder of claim 2, wherein: a plurality of countersunk screw (21) all rotates towards pivot (11) one end and is connected with stopper (23), pivot (11) correspond stopper (23) position and have seted up spacing groove (22) along the circumferencial direction, stopper (23) butt is in spacing groove (22), stopper (23) slide along the axis direction that corresponds countersunk screw (21) and connect in spacing seat (16).

4. The high torque gearbox for an extruder of claim 1, wherein: the position adjusting assembly (3) comprises a threaded sleeve (31) and abutting bolts (32), the threaded sleeve (31) is provided with a plurality of parts which are uniformly arranged along the circumferential direction of the limiting seat (16), the threaded sleeve (31) is arranged on the limiting seat (16), the abutting bolts (32) correspond to the threaded sleeve (31) one to one, and the threaded ends of the abutting bolts (32) are abutted to the limiting piece (15).

5. The high torque gearbox for extruder of claim 4, wherein: fixedly connected with slider (33) on the periphery of screw sleeve (31), spout (34) have been seted up along the axis direction of pivot (11) on spacing seat (16), spout (34) have a plurality of along spacing seat (16) circumferencial direction evenly distributed, screw sleeve (31) are slided and are connected in spout (34), screw sleeve (31) are towards drive gear (13) one end coaxial fixation has baffle (35), baffle (35) and spacing seat (16) are towards drive gear (13) one side butt.

6. The high torque gearbox for extruder of claim 5, wherein: one end of the abutting bolt (32) facing the limiting piece (15) is provided with a pressing block (4), and the position of the limiting piece (15) corresponding to the pressing block (4) is provided with a pressing groove (41).

7. The high torque gearbox for extruder of claim 6, wherein: the pressing block (4) faces one end of the abutting bolt (32) and is fixedly connected with an inserting rod (42), the inserting rod (42) is inserted into the abutting bolt (32), and the pressing block and the abutting bolt are in tight fit.

8. The high torque gearbox for an extruder of claim 1, wherein: the rotary shaft (11) is provided with scale marks (12), and the scale marks (12) are located between the two limiting seats (16).